src/marnav/nmea/mwv.hpp

   1 #ifndef __NMEA__MWV__HPP__
   2 #define __NMEA__MWV__HPP__
   3
   4 #include <marnav/nmea/sentence.hpp>
   5 #include <marnav/utils/optional.hpp>
   6
   7 namespace marnav
   8 {
   9 namespace nmea
  10 {
  11 MARNAV_NMEA_DECLARE_SENTENCE_PARSE_FUNC(mwv)
  12
  13 /// @brief MWV - Wind Speed and Angle
  14 ///
  15 /// @code
  16 ///        1   2 3   4 5
  17 ///        |   | |   | |
  18 /// $--MWV,x.x,a,x.x,a,a*hh<CR><LF>
  19 /// @endcode
  20 ///
  21 /// Field Number:
  22 /// 1. Wind Angle, 0 to 360 degrees
  23 /// 2. Wind Angle Reference
  24 ///    - R = Relative
  25 ///    - T = True
  26 /// 3. Wind Speed
  27 /// 4. Wind Speed Unit
  28 ///    - K
  29 ///    - M
  30 ///    - N
  31 /// 5. Status
  32 ///    - A = Data Valid
  33 //     - V = Invalid
  34 ///
  35 class mwv : public sentence
  36 {
  37         MARNAV_NMEA_SENTENCE_FRIENDS(mwv)
  38
  39 public:
  40         constexpr static const sentence_id ID = sentence_id::MWV;
  41         constexpr static const char * TAG = "MWV";
  42
  43         virtual ~mwv() {}
  44
  45         mwv();
  46         mwv(const mwv &) = default;
  47         mwv & operator=(const mwv &) = default;
  48
  49 protected:
  50         mwv(const std::string & talker, fields::const_iterator first, fields::const_iterator last);
  51         virtual std::vector<std::string> get_data() const override;
  52
  53 private:
  54         utils::optional<double> angle; // wind angle, 0..359 right of bow
  55         utils::optional<reference> angle_ref; // R:relative, T:true
  56         utils::optional<double> speed; // wind speed
  57         utils::optional<unit::velocity> speed_unit; // wind speed unit, K:knots, M:mph
  58         utils::optional<status> data_valid; // status, A:valid
  59
  60 public:
  61         NMEA_GETTER(angle)
  62         NMEA_GETTER(angle_ref)
  63         NMEA_GETTER(speed)
  64         NMEA_GETTER(speed_unit)
  65         NMEA_GETTER(data_valid)
  66
  67         void set_angle(double deg, reference ref);
  68         void set_speed(double speed, unit::velocity u) noexcept;
  69         void set_data_valid(status t) noexcept { data_valid = t; }
  70 };
  71 }
  72 }
  73
  74 #endif